Research progress in the use of adsorption for dephosphorization

doi:10.11894/1005-829x.2015.35(7).001

Abstract

Abstract:

The advantages of adsorption are as follows:high capacity, low energy consumption, low pollution, rapid removal, and can be circulated. Adsorption has wide application prospect, suitable for the dephosphorization of seco- ndary effluent from wastewater treatment plants whose water quantity is high and resident time short. The present state of research on dephosphorization with adsorbents, such as activated carbon, biomass, metallic hydroxide, silica- based mesoporous molecular sieve, clay minerals, etc., and their modified adsorbents, is introduced. The effects of co-existent ions, temperature, particle size, pH, initial phosphorus concentration, reaction time, modifying ways, etc. on dephosphorization are analyzed in detail. Its disadvantages and problems that need to be solved are pointed out and the research directions of the future of adsorption methods for dephosphorization are looked forward.

Key words: adsorbent, wastewater, adsorption, phosphate

摘要：

吸附法具有容量大、耗能少、污染小、去除快、可循环等优点, 在废水除磷领域有广泛的应用前景, 适用于水量大和停留时间短的污水处理厂二级出水的除磷。介绍了活性炭、生物质、金属(氢)氧化物、硅基介孔分子筛和黏土矿物等吸附剂及其改性态吸附剂除磷的研究现状, 详细分析了共存离子、温度、粒径、pH、初始磷浓度、反应时间和改性方式等对除磷的影响。指出了吸附法除磷的不足和待改进之处, 展望了吸附法除磷未来的研究方向。

关键词: 吸附剂, 废水, 吸附, 磷酸盐

CLC Number:

X703.1

Tang Chaochun, Chen Huimin, Liu Ming, Ye Xin. Research progress in the use of adsorption for dephosphorization[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(7): 1-4.

唐朝春, 陈惠民, 刘名, 叶鑫. 利用吸附法除磷研究进展[J]. 工业水处理, 2015, 35(7): 1-4.

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